Classless IPv4 Addressing Quiz

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What is the main reason for classless addressing?

More classes than other types of addressing

More security by encrypting datagrams

More compatibility with upper layers protocols

Better usage of the available addressing space (correct)

Which of the following can be used as a block address for a 1024 host network?

TCP and UDP

Upper protocol and lower protocol

OUI and serial number

Network ID and host ID (correct)

What is the only one of the following IP addresses that can be assigned as a host address?

100.10.50.192 /28

100.256.70.10 /24

200.60.6.7 /29 (correct)

210.60.50.40 /25

How many hosts can be accommodated in the block 20.30.50.0 /22?

1048 Signup and view all the answers

Which of the following is not a valid CIDR notation?

/256 Signup and view all the answers

What is the block boundary address for subnet 192.168.1.0/26?

192.168.1.128 Signup and view all the answers

What is the subnet mask for a CIDR notation of n=22?

255.255.252.0 Signup and view all the answers

What is the suffix length for a CIDR notation of n=22?

10 Signup and view all the answers

What is the actual number of addresses in a block with a CIDR notation of n=22?

$2^{10}$ Signup and view all the answers

What is the first address in the block for a CIDR notation of n=22?

Any address in the block ANDed with the subnet mask Signup and view all the answers

What is the last address in the block for a CIDR notation of n=22?

The first address in the block plus the complement of the subnet mask Signup and view all the answers

What is the usable number of addresses in a block with a CIDR notation of n=22?

$2^{10}-2$ Signup and view all the answers

What is the subnet mask for the CIDR notation 17.17.32.0/22?

255.255.252.0 Signup and view all the answers

What is the suffix length for the CIDR notation 17.17.32.0/22?

12 Signup and view all the answers

What is the first address in the block for the CIDR notation 17.17.32.0/22?

17.17.32.0 Signup and view all the answers

What is the total number of addresses in the block for the CIDR notation 17.17.32.0/22?

1024 Signup and view all the answers

Which statement about CIDR notation is correct?

The prefix length is the number of bits in the network portion of the IP address. Signup and view all the answers

What is the last address in the block for the CIDR notation 17.17.32.0/22?

17.17.35.255 Signup and view all the answers